1 September 2009 Thermoacoustic and photoacoustic sensing of temperature
Author Affiliations +
J. of Biomedical Optics, 14(5), 054024 (2009). doi:10.1117/1.3247155
We present a novel temperature-sensing technique using thermoacoustic and photoacoustic measurements. This noninvasive method has been demonstrated using a tissue phantom to have high temporal resolution and temperature sensitivity. Because both photoacoustic and thermoacoustic signal amplitudes depend on the temperature of the source object, the signal amplitudes can be used to monitor the temperature. A temperature sensitivity of 0.15°C was obtained at a temporal resolution as short as 2 s, taking the average of 20 signals. The deep-tissue imaging capability of this technique can potentially lead us to in vivo temperature monitoring in thermal or cryogenic applications.
Manojit Pramanik, Lihong V. Wang, "Thermoacoustic and photoacoustic sensing of temperature," Journal of Biomedical Optics 14(5), 054024 (1 September 2009). https://doi.org/10.1117/1.3247155

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